Duke DSO 500, Service Manual

Page: 66 / 80

Service Manual for Speed Oven Model DSO 500
66
ADJUSTMENTS
Door Interlock Adjustment
The Speed Oven will not operate unless the
interlock switches, Figure 35 and Figure 36, are
properly engaged. Make no attempt to mechani-
cally or electrically override the interlock circuit.
When the door is latched closed, the interlock
switches “P” and “S” must be engaged (contacts
closed) and the monitor switch “M” must be dis-
engaged (Contacts open). When the oven door
is open, the interlock switches “P” and “S” must
be disengaged (contacts open) and the monitor
switch “M” must be engaged (Contacts closed).
Tools Required
• Open end wrench
• Crescent wrench
Procedure
1. Disconnect the oven from the power source.
2. Remove oven left and right side panels to
gain access to the interlock switch assembly.
(Switches are located at the top corners at the
point where oven door latches engage).
3. Locate the adjustment bolt.
4. Loosen the locking nut and adjust the switch
plate to mechanically engage the primary
interlock switch “P” and the secondary in-
terlock switch “S”. At this time the monitor
switch “M” and the control switch must be
disengaged.
5. Repeat this procedure on opposite side.
NOTE: Both interlock switches “P” and “S” must
fully engage for oven to operate.
6. Perform the Microwave Leakage Test
Procedure in the TEST section.
NOTE: Be aware of wiring differences between
control switch and monitor switch.
Figure 35. Door Interlock Switches (Left)
Figure 36. Door Interlock Switches (Right)